Decomposition of hydrofluorocarbons in a dielectric-packed plasma reactor

Y. S. Mok, V. Demidyuk, J. C. Whitehead

    Research output: Contribution to journalArticlepeer-review


    This study investigated the decomposition of hydrofluorocarbons (HFCs) having high global warming potentials by using a dielectric-packed-bed nonthermal plasma reactor with barium titanate beads as the packing material. The target HFCs were 1,1,1,2-tetrafluoroethane (HFC-134a) and 1,1-difluoroethene (HFC-132a). The effects of several parameters such as reaction temperature, oxygen content, and initial concentration on the HFC decomposition efficiency were evaluated. There was essentially no temperature dependence of the HFC decomposition efficiency in the range 150-250°C. The optimum oxygen content for HFC decomposition was found to be about 0.5 vol %, Variations in the initial concentration did not affect the decomposition efficiency. The decomposition products were analyzed, and some decomposition pathways were elucidated. The energy requirements for the decomposition of HFC-134a and HFC-132a were found to be 0.038 and 0.062 mol MJ-1, respectively, based on the initial concentrations of 200 and 120 ppm (parts per million, volumetric). © 2008 American Chemical Society.
    Original languageEnglish
    Pages (from-to)6586-6591
    Number of pages5
    JournalJournal of Physical Chemistry A
    Issue number29
    Publication statusPublished - 24 Jul 2008


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